/Engine/Source/Editor/MovieSceneTools/Public/TrackEditorThumbnail/TrackEditorThumbnail.h
Create and initialize a new instance.
FTrackEditorThumbnail ( const FOnThumbnailDraw & InOnDraw, const FIntPoint & InDesiredSize, [TRange](API\Runtime\Core\Math\TRange)< double > InTimeRange, double InPosition )